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Mid-IR Holmium Fiber Laser Is Pumped with Diode Laser

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Pump energy is absorbed directly by holmium dopant, without sensitizer.

Breck Hitz

Remote sensing, spectroscopy, medicine and military countermeasures are among the applications that would benefit from efficient, compact mid-infrared lasers. Fiber lasers have proved both efficient and compact sources in the near-IR, but because dopants that lase in the mid-IR often require bulky, nondiode pump sources, those few mid-IR fiber lasers developed so far have not been particularly efficient or compact. Figure 1. When lasing at 2840 nm, a holmium laser can be pumped from the ground level directly to the upper laser level. Depending on the wavelength of the resonator feedback,...Read full article

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    Published: November 2007
    Glossary
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    remote sensing
    Remote sensing is a method of data collection and observation where information about objects, areas, or phenomena on Earth's surface is gathered from a distance, typically using sensors onboard satellites, aircraft, drones, or other platforms. This technique enables the monitoring and analysis of Earth's surface and atmosphere without direct physical contact. Remote sensing systems capture electromagnetic radiation (such as visible light, infrared, microwave, or radio waves) reflected or...
    defensefiber lasersfiber opticsphotonicsremote sensingResearch & Technologyspectroscopy

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